git:20260824.da779f9 to git:20260824.dfd64f3

---

{

"name": "migrate-to-shoehorn",

"description": "Migrate test files from as type assertions to @total-typescript/shoehorn. Use when user mentions shoehorn, wants to replace as in tests, or needs partial test data.",

"credit": "Matt Peacock (mattpocock/skills)"

}

---

# Migrate to Shoehorn

Migrate test files from `as` type assertions to @total-typescript/shoehorn.

## Why shoehorn?

- Pass partial data in tests while keeping TypeScript happy

- Replace `as` assertions with type-safe alternatives

- Test code only — never use in production

## Functions

- fromPartial() — Pass partial data that still type-checks

- fromAny() — Pass intentionally wrong data

- fromExact() — Force full object

## Workflow

1. **Gather requirements** — What test files have `as` assertions?

2. **Install** — npm i @total-typescript/shoehorn

3. **Find** — grep for `as Type` patterns in test files

4. **Replace** — as Type → fromPartial(), as unknown as Type → fromAny()

5. **Verify** — Run type check

## Credit

This skill is based on the work of **Matt Peacock** ([@mattpocock](https://github.com/mattpocock)). Original source: [mattpocock/skills](https://github.com/mattpocock/skills). Licensed under MIT.